derring-do vs exploit

derring-do and exploit both are nouns.

Word	Noun	Adjective	Verb	Adverb
derring-do	Yes	No	No	No
exploit	Yes	No	Yes	No

As nouns, exploit is a hypernym of derring-do; that is, exploit is a word with a broader meaning than derring-do:

Other hypernyms of derring-do include effort, feat.

derring-do (noun)	exploit (noun)
brave and heroic feats	a notable achievement

derring-do (verb)	exploit (verb)
	use or manipulate to one's advantage
	draw from; make good use of
	work excessively hard